Hello all, my question is… when changing the hydraulic oil filter on my L5450 how much oil am I going to spill.. presuming my tractor is full of hydraulic fluid…? I have the new filter ready but I’m looking at the location of the filter on the side and it’s well below the “full” level. The fluid is clean and tractor is acting fine so I don’t want to just drain and replace 11 plus gallons of fluid until needed. I’m thinking if I’m quick I can mitigate the mess to maybe a quart or??? Any help is appreciated. I’ve read and used everyone’s advice here for many years but finally decided to jump in to things with a question of my own.. how brave I am! Thanks to everyone for helping.. past, present and future. Take care all